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This product is restricted to those over the age of 18. You will be required to verify your age during checkout.

In stock


This C Roberson Impasto Medium will double oil paints for achieving impasto effects, when the paint is layered thick and textured.

  • Made with stand oil, dammar resin, turpentine and bleached beeswax to a recipe created in the 19th century, it is crack-resistant and dries to a matt finish.
  • Mixed one to one with your oil paint, C Roberson Impasto Medium retains the strength of colour while allowing you to build and define, showing brush or palette strokes.
Delivery & Returns

Our delivery charge is based on the largest item in your order, no matter how many items you order. We dispatch orders every working day (ie Mon-Fri, not including Bank Holidays) for all delivery options. 

Next Working Day Delivery 

Order by 2pm Mon-Fri: £7.50

Saturday Delivery

Select our Saturday delivery option any day of the week (by 2pm on Friday) to have your order delivered on the following Saturday: £9.00

Standard Delivery 

Within 3-5 working days: £3.95

Click & Collect 

Free, from Cass Art stores. Available to collect within 2 working days.

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2 Customer Reviews

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23rd February 2014 Reviewed by wxzzxw25 I USE IT ON PAINT


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7th December 2013 Reviewed by Frank Majkowski Excellent
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